Lab 3 SW - Name LAB 3 Electric Field and Potential This is a virtual lab based on the interactive simulator Charges and Fields Access the simulator

Lab 3 SW - Name LAB 3 Electric Field and Potential This...

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Name: LAB 3: Electric Field and Potential This is a virtual lab based on the interactive simulator Charges and Fields . Access the simulator at - fields/latest/charges-and-fields_en.html . Objectives: In this lab, you will Verify the formula for the electric field of the point charge Explore the electric field lines of various charge configurations and the superposition principle Explore the relationship between the electric field and electric potential Part I: Electric field of the point charge Procedure: 1) Click on “Grid.” Place one positive charge in the center of the grid. Click on “Electric Field.” Can the arrows that the program uses to visualize the electric field be called field lines? How are they similar and different from the field lines? 2) Click on “Values”. Place electric field sensors (yellow circles) on five various points on the grid. (For convenience, choose points on the intersections of the major grid lines.) Assuming the point charge is placed in the origin of the coordinate system, record the following information in the table below. Note the scale on the grid and make sure to use correct units.
Sensor #x y22yxrxy1tan||EElectricField angle12345Note that the information in the columns 2 – 5 pertains to the location of the sensors and the information in the columns 6 – 7 is magnitude and direction of the electric field calculated by the simulator.Conclusions:a) Prove that the electric field of the point charge is radial by comparing your values in column 5 (position angle) and in column 7 (electric field angle). Explain.b) Calculate the value of 2||rEfor all five sensors. Add another column to the table above to record your results. Do they show that the magnitude of the electric field of the point charge is inversely proportional to the distance squared? Explain. Use the values you found and the value of the point charge 1nC to find constant experimentally. k

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